zfs/module/zcommon/zpool_prop.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <sys/zio.h>
#include <sys/spa.h>
#include <sys/zfs_acl.h>
#include <sys/zfs_ioctl.h>
#include <sys/fs/zfs.h>

#include "zfs_prop.h"

#if defined(_KERNEL)
#include <sys/systm.h>
#else
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#endif

static zprop_desc_t zpool_prop_table[ZPOOL_NUM_PROPS];

zprop_desc_t *
zpool_prop_get_table(void)
{
	return (zpool_prop_table);
}

void
zpool_prop_init(void)
{
	static zprop_index_t boolean_table[] = {
		{ "off",	0},
		{ "on",		1},
		{ NULL }
	};

	static zprop_index_t failuremode_table[] = {
		{ "wait",	ZIO_FAILURE_MODE_WAIT },
		{ "continue",	ZIO_FAILURE_MODE_CONTINUE },
		{ "panic",	ZIO_FAILURE_MODE_PANIC },
		{ NULL }
	};

	/* string properties */
	register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT,
	    ZFS_TYPE_POOL, "<path>", "ALTROOT");
	register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT,
	    ZFS_TYPE_POOL, "<filesystem>", "BOOTFS");
	register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL, PROP_DEFAULT,
	    ZFS_TYPE_POOL, "<file> | none", "CACHEFILE");

	/* readonly number properties */
	register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
	    ZFS_TYPE_POOL, "<size>", "SIZE");
	register_number(ZPOOL_PROP_USED, "used", 0, PROP_READONLY,
	    ZFS_TYPE_POOL, "<size>", "USED");
	register_number(ZPOOL_PROP_AVAILABLE, "available", 0, PROP_READONLY,
	    ZFS_TYPE_POOL, "<size>", "AVAIL");
	register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
	    ZFS_TYPE_POOL, "<size>", "CAP");
	register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
	    ZFS_TYPE_POOL, "<guid>", "GUID");
	register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
	    ZFS_TYPE_POOL, "<state>", "HEALTH");

	/* default number properties */
	register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
	    PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");

	/* default index (boolean) properties */
	register_index(ZPOOL_PROP_DELEGATION, "delegation", 1, PROP_DEFAULT,
	    ZFS_TYPE_POOL, "on | off", "DELEGATION", boolean_table);
	register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0, PROP_DEFAULT,
	    ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
	register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0, PROP_DEFAULT,
	    ZFS_TYPE_POOL, "on | off", "LISTSNAPS", boolean_table);

	/* default index properties */
	register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
	    ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
	    "wait | continue | panic", "FAILMODE", failuremode_table);

	/* hidden properties */
	register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
	    PROP_READONLY, ZFS_TYPE_POOL, "NAME");
}

/*
 * Given a property name and its type, returns the corresponding property ID.
 */
zpool_prop_t
zpool_name_to_prop(const char *propname)
{
	return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
}

/*
 * Given a pool property ID, returns the corresponding name.
 * Assuming the pool propety ID is valid.
 */
const char *
zpool_prop_to_name(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_name);
}

zprop_type_t
zpool_prop_get_type(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_proptype);
}

boolean_t
zpool_prop_readonly(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
}

const char *
zpool_prop_default_string(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_strdefault);
}

uint64_t
zpool_prop_default_numeric(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_numdefault);
}

int
zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
    uint64_t *idx)
{
	return (zprop_string_to_index(prop, string, idx, ZFS_TYPE_POOL));
}

int
zpool_prop_index_to_string(zpool_prop_t prop, uint64_t idx,
    const char **string)
{
	return (zprop_index_to_string(prop, idx, string, ZFS_TYPE_POOL));
}

#ifndef _KERNEL

const char *
zpool_prop_values(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_values);
}

const char *
zpool_prop_column_name(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_colname);
}

boolean_t
zpool_prop_align_right(zpool_prop_t prop)
{
	return (zpool_prop_table[prop].pd_rightalign);
}
#endif

#if defined(_KERNEL) && defined(HAVE_SPL)
/* zpool property functions */
EXPORT_SYMBOL(zpool_prop_init);
EXPORT_SYMBOL(zpool_prop_get_type);
EXPORT_SYMBOL(zpool_prop_get_table);

/* Pool property functions shared between libzfs and kernel. */
EXPORT_SYMBOL(zpool_name_to_prop);
EXPORT_SYMBOL(zpool_prop_to_name);
EXPORT_SYMBOL(zpool_prop_default_string);
EXPORT_SYMBOL(zpool_prop_default_numeric);
EXPORT_SYMBOL(zpool_prop_readonly);
EXPORT_SYMBOL(zpool_prop_index_to_string);
EXPORT_SYMBOL(zpool_prop_string_to_index);
#endif